The starters may be a little gassed. I am thinking with Sale and Houck on the team, Cora will find a way to give the starters more rest.
That said, to me, while the pitching has not been great, the offense is what needs to get it going. The Sox scored 141 runs in June, but only 118 runs in July. At the same time, the pitching staff allowed 138 runs in June, but only 117 runs in July. The pitchers are doing what they do, pitching so-so most of the time but keeping the offense in the game. The offense has not been coming through.